How severe is CVE-2018-11409?

CVE-2018-11409 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2018-11409 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 98% (100th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-11409?

CVE-2018-11409 affects Splunk. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-11409?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-11409 published?

CVE-2018-11409 was published on 2018-06-08 and last updated on 2026-06-17.

CVE-2018-11409

CVE-2018-11409 is a medium-severity vulnerability in Splunk with a CVSS 3.x base score of 5.3. Its EPSS exploit-prediction score of 98% places it in the 100th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-200.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 98% (100th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Splunk
Published: 2018-06-08
Last modified: 2026-06-17

Description

Splunk through 7.0.1 allows information disclosure by appending __raw/services/server/info/server-info?output_mode=json to a query, as demonstrated by discovering a license key.

Frequently asked questions

What is CVE-2018-11409?: Splunk through 7.0.1 allows information disclosure by appending __raw/services/server/info/server-info?output_mode=json to a query, as demonstrated by discovering a license key.
How severe is CVE-2018-11409?: CVE-2018-11409 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2018-11409 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 98% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-11409?: CVE-2018-11409 affects Splunk. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-11409?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-11409 published?: CVE-2018-11409 was published on 2018-06-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:splunk:splunk:*:*:*:*:*:*:*:*

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